EP3377458B1 - Ultraleichter mineralischer schaum und herstellungsverfahren dafür - Google Patents

Ultraleichter mineralischer schaum und herstellungsverfahren dafür Download PDF

Info

Publication number
EP3377458B1
EP3377458B1 EP16813000.3A EP16813000A EP3377458B1 EP 3377458 B1 EP3377458 B1 EP 3377458B1 EP 16813000 A EP16813000 A EP 16813000A EP 3377458 B1 EP3377458 B1 EP 3377458B1
Authority
EP
European Patent Office
Prior art keywords
calcium
cement
foam
water
mineral
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP16813000.3A
Other languages
English (en)
French (fr)
Other versions
EP3377458A1 (de
Inventor
Christian Blachier
Christine Chaumilliat
Hélène LOMBOIS-BURGER
Serge Sabio
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Holcim Technology Ltd
Original Assignee
Holcim Technology Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Holcim Technology Ltd filed Critical Holcim Technology Ltd
Priority to PL16813000T priority Critical patent/PL3377458T3/pl
Publication of EP3377458A1 publication Critical patent/EP3377458A1/de
Application granted granted Critical
Publication of EP3377458B1 publication Critical patent/EP3377458B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/10—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by using foaming agents or by using mechanical means, e.g. adding preformed foam
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators or shrinkage compensating agents
    • C04B22/0086—Seeding materials
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators or shrinkage compensating agents
    • C04B22/08—Acids or salts thereof
    • C04B22/085—Acids or salts thereof containing nitrogen in the anion, e.g. nitrites
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators or shrinkage compensating agents
    • C04B22/08—Acids or salts thereof
    • C04B22/12—Acids or salts thereof containing halogen in the anion
    • C04B22/124—Chlorides of ammonium or of the alkali or alkaline earth metals, e.g. calcium chloride
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/24—Macromolecular compounds
    • C04B24/26—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B24/2641—Polyacrylates; Polymethacrylates
    • C04B24/2647—Polyacrylates; Polymethacrylates containing polyether side chains
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C04B28/04—Portland cements
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B7/00—Hydraulic cements
    • C04B7/36—Manufacture of hydraulic cements in general
    • C04B7/48—Clinker treatment
    • C04B7/52—Grinding ; After-treatment of ground cement
    • C04B7/527—Grinding ; After-treatment of ground cement obtaining cements characterised by fineness, e.g. by multi-modal particle size distribution
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/0067—Function or property of ingredients for mortars, concrete or artificial stone the ingredients being formed in situ by chemical reactions or conversion of one or more of the compounds of the composition
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/10—Accelerators; Activators
    • C04B2103/14—Hardening accelerators
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/30—Water reducers, plasticisers, air-entrainers, flow improvers
    • C04B2103/302—Water reducers
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/30—Water reducers, plasticisers, air-entrainers, flow improvers
    • C04B2103/32—Superplasticisers
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/40—Porous or lightweight materials
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/52—Sound-insulating materials
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
    • C04B2201/32—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values for the thermal conductivity, e.g. K-factors

Definitions

  • the present invention relates to an ultralight cement-based mineral foam, to a process for producing this foam, as well as to construction elements comprising this foam.
  • mineral foam especially cement foam
  • properties such as thermal insulation, sound insulation, durability, fire resistance and ease of setting. implemented.
  • Inorganic foam refers to a material in the form of a foam. This material is lighter than traditional concrete because of the pores or empty spaces it includes. These pores or empty spaces are due to the presence of air in the mineral foam and may appear in the form of bubbles.
  • the term “ultralight foam” means a foam whose density in the dry state is generally between 20 and 300 kg / m 3 .
  • WO 2013/150148 describes cement-based foams comprising various adjuvants. These foams can include calcium aluminate to allow rapid setting or fine mineral particles in addition to a Portland cement. The lowest densities achieved by this process are however most often limited to 100 kg / m 3 .
  • the patent application WO 2011/086333 describes mineral foams based on aluminous cements.
  • the high reactivity of these cements certainly makes it possible to form stable and homogeneous mineral foams, but the high cost of these cements as well as their high reactivity make this invention in many cases difficult to use by users.
  • the problem which the invention proposes to solve is to find an ultra-light stable mineral foam formulation, which does not collapse when the foam is poured vertically and whose production is relatively easy and inexpensive.
  • the water E is water from the urban network, or water taken from a natural environment.
  • a cement C is a hydraulic binder comprising a proportion at least equal to 50% by mass of calcium oxide (CaO) and silicon dioxide (SiO 2 ).
  • a cement can therefore comprise other compounds in addition to CaO and SiO 2 , and in particular comprise Portland clinker, slag, silica fume, pozzolans (natural and natural calcined), fly ash (siliceous and calcium), shale and / or limestone.
  • the cement C used according to the process of the invention can be any type of cement whatever its chemical composition, and in particular whatever its content. in alkalis. Thus, it is advantageous according to this method of the invention not to have to select a particular cement.
  • the cement C used to carry out the invention is preferably chosen from the cements available on the market.
  • the cement C used in the cement slurry used according to the process of the invention comprises more than 70% by mass, advantageously more than 80% by mass, more advantageously more than 90% by mass of Portland clinker.
  • This cement C is used according to the process of the invention in the presence of a specific quantity of water E in the grout, characterized by the mass ratio W / C.
  • the W / C ratio of the cement slurry is from 0.25 to 0.38, more preferably from 0.28 to 0.35, expressed by mass.
  • the cement C used according to the process of the invention to produce the mineral foams can be selected from the cements described in the standard NF-EN197-1 of April 2012, in particular the cements of the CEM I, CEM II type, CEM III, CEM IV, or CEM V.
  • the cement C can also be a compound cement comprising a mixture of CEM I and pozzolanic materials and / or limestone previously ground, this cement being composed directly during the preparation.
  • the cement C used according to the process of the invention to produce the mineral foams is a cement of CEM I type.
  • the cement which may be suitable for use according to the present invention has a Blaine specific surface area of 3,000 to 10,000 cm 2 / g, preferably of 3,500 to 6,000 cm 2 / g.
  • the cement slurry used in the process according to the invention can advantageously comprise a water reducing agent of the plasticizer or superplasticizer type.
  • a water reducing agent makes it possible to reduce the quantity of mixing water by approximately 10 to 15% by mass for a given working time.
  • a water reducing agent mention may be made of lignosulphonates, hydroxycarboxylic acids, carbohydrates, and other specific organic compounds, such as for example glycerol, polyvinyl alcohol, sodium aluminomethyl siliconate, sulfanilic acid and casein (see Concrete Admixtures Handbook, Properties Science and Technology, VS Ramachandran, Noyes Publications, 1984 ).
  • Superplasticizers belong to the new generation of water reducing agents and make it possible to reduce the quantity of mixing water by approximately 30% by mass for a given working time.
  • a superplasticizer mention may be made of PCP superplasticizers without an anti-foaming agent, POE diphosphonates and POE polyphosphates.
  • PCP polycarboxylate polyoxide
  • PES poly(ethylene oxide)
  • the cement slurry making it possible to produce the mineral foam according to the invention comprises from 0.05 to 1.00%, more preferably from 0.05 to 0.5% of a water reducing agent, of a plasticizer or a superplasticizer, percentage expressed in dry mass relative to the cement mass C.
  • the water-reducing agent of the plasticizer or superplasticizer type does not include an anti-foam agent.
  • the cement grout or the aqueous foam can also comprise from 0.05 to 2.5% of a cement setting accelerator, a percentage expressed in dry mass relative to the cement C.
  • the cement slurry prepared in step (i) of the process according to the invention comprises a water-soluble calcium salt.
  • the water soluble calcium salt can be in powder or liquid form, in anhydrous or hydrated form.
  • the water-soluble calcium salt has a solubility in water at 20 ° C. greater than 2 g / 100 mL.
  • the concentration of calcium ions in the cement slurry is from 0.05 to 0.60%, more preferably from 0.05 to 0.45% percentage expressed by mass relative to the mass of cement C.
  • the water-soluble calcium salt is chosen from calcium chloride, calcium nitrate, calcium formate, calcium acetate, calcium chlorate, calcium bromide, calcium lactate , calcium nitrite, calcium propionate, calcium hydrogen carbonate, calcium iodide and mixtures thereof.
  • the cement slurry prepared in step (i) of the process according to the invention comprises a silicate salt soluble in water.
  • the water-soluble silicate salt can be provided in powder or liquid form, in anhydrous or hydrated form.
  • the water-soluble silicate salt exhibits a solubility in water at 20 ° C. greater than 2 g / 100mL.
  • the concentration of silicate ions in the cement slurry is from 0.11 to 1.00%, more preferably from 0.11 to 0.66%, percentage expressed by mass relative to the mass of cement C.
  • the water-soluble silicate salt is chosen from the family of silicates: metasilicate, orthosilicate, sodium pyrosilicate, the family of silicates: metasilicate, orthosilicate, potassium pyrosilicate, silicic acid and their mixtures.
  • the soluble alkali silicates are generally described by the following general formula: M 2 O-nSiO 2 with M corresponding to Na or to K and n is the molar ratio which represents the number of moles of moles of silica dioxide (SiO 2 ) per mole of metal oxide (M 2 O).
  • the calcium / silicon molar ratio is from 0.8 to 1.6, more preferably from 0.8 to 1.5.
  • additives can be added either in the cement slurry or in the aqueous foam.
  • Such additives can for example be a thickening agent, a viscosity agent, an air entraining agent, a cement setting retarder, an inerting agent for clays, pigments, dyes, hollow glass beads, film-forming agents.
  • hydrophobic or depolluting agents such as, for example, zeolites or titanium dioxide
  • latexes organic or inorganic fibers, mineral additions or their mixtures.
  • the additives used do not include an anti-foaming agent.
  • the mineral foam according to the invention comprises a mineral addition.
  • This mineral addition can be added during the process according to the invention in the cement slurry.
  • Mineral additions are, for example, slags (for example as defined in standard NF EN 197-1 of April 2012, paragraph 5.2.2), pozzolans (for example as defined in standard NF EN 197- 1 of April 2012, paragraph 5.2.3), fly ash (for example as defined in standard NF EN 197-1 of April 2012, paragraph 5.2.4), calcined shale (for example as defined in standard NF EN 197-1 of April 2012, paragraph 5.2.5), materials based on calcium carbonate, such as limestone (for example as defined in standard NF EN 197-1 of April 2012, paragraph 5.2.6), silica fumes (for example as defined in standard NF EN 197-1 of April 2012, paragraph 5.2.7), metakaolins or their mixtures.
  • slags for example as defined in standard NF EN 197-1 of April 2012, paragraph 5.2.2
  • pozzolans for example as defined in standard NF EN 197- 1 of April 2012, paragraph 5.2.3
  • fly ash for example as defined in standard NF EN 197-1 of April 2012, paragraph 5.
  • a formulation according to the invention allows considerable time and cost savings and goes against the technical prejudices according to which the use of various additives is necessary to ensure the stability of a cement foam.
  • the mineral foam according to the invention does not contain substantially any fine particles.
  • fine particle is meant a population of particles therefore the median diameter D50 is strictly less than 2 ⁇ m.
  • the D50 also denoted D 50 V, corresponds to the 50 th percentile of the distribution by volume of size particles, that is to say that 50% of the volume consists of particles whose size is less than D50 and 50% of size greater than D50.
  • substantially is meant less than 1%, advantageously less than 5%, expressed by mass relative to the mass of cement.
  • the mineral foam according to the invention does not contain a mixture of two organic compounds forming respectively an anionic compound and a cationic compound with long chains as described in the patent. US 5,696,174 .
  • the cements which are little or not suitable for carrying out the invention are calcium aluminate cements or their mixtures.
  • Calcium aluminate cements are cements generally comprising a C4A3 $, CA, C12A7, C3A or C11A7CaF 2 mineralogical phase or their mixtures, such as, for example, Ciments Fondu®, aluminous cements, sulphoaluminous cements, cements calcium aluminates in accordance with European standard NF EN 14647 of December 2006. Such cements are characterized by an alumina (Al 2 O 3 ) content greater than or equal to 35% by mass.
  • the cement slurry can be prepared by introducing into a mixer the water, the adjuvants (such as for example the water reducing agent), the calcium salts and the silicate salts.
  • the cement, and possibly all the other materials in powder form, is then introduced into the mixer.
  • the paste obtained is kneaded to obtain a cement grout.
  • the cement slurry is kept under agitation, for example with a deflocculating paddle, the speed of the paddle being able to vary from 1000 rpm to 400 rpm depending on the volume of the grout throughout the duration of the manufacturing process.
  • mineral foam according to the invention is kept under agitation, for example with a deflocculating paddle, the speed of the paddle being able to vary from 1000 rpm to 400 rpm depending on the volume of the grout throughout the duration of the manufacturing process.
  • the cement slurry can be prepared by introducing part of the water as well as the adjuvants (such as for example the water reducing agent), the calcium salts and the silicate salts in a mixer, then the cement, and then the other compounds.
  • the adjuvants such as for example the water reducing agent
  • the cement slurry can be prepared by introducing the cement, and possibly all the other materials in powder form, into a mixer. Cement and powders can be mixed to obtain a homogeneous mixture. The water, the adjuvants (such as for example the water reducing agent), the calcium salts and the silicate salts are then introduced into the mixer.
  • the adjuvants such as for example the water reducing agent
  • the calcium salts and the silicate salts are then introduced into the mixer.
  • the cement slurry can be generated continuously by having previously made a mixture comprising water with the adjuvants (such as for example the water reducing agent), the calcium salts and the salts silicate.
  • the adjuvants such as for example the water reducing agent
  • the calcium salts such as for example the calcium salts and the salts silicate.
  • the aqueous foam can be made by contacting water and a foaming agent and then introducing a gas therein.
  • the aqueous foam comprises water and a foaming agent.
  • This gas is preferably air.
  • the amount of foaming agent is generally between 0.25 and 5.00% by mass of dry matter of foaming agent relative to the mass of water, preferably from 0.75% to 2.50%.
  • the air can be introduced by stirring, by bubbling or by injection under pressure.
  • the aqueous foam can be produced using a turbulent frother (bed of glass beads for example). This type of foamer makes it possible to introduce pressurized air into an aqueous solution comprising a foaming agent.
  • the aqueous foam can be generated continuously.
  • the aqueous foam generated has an air bubble size exhibiting a D50 which is less than or equal to 400 ⁇ m, preferably comprised from 100 to 400 ⁇ m, more preferably comprised from 150 to 300 ⁇ m.
  • the D50 also denoted by D V 50, corresponds to the 50 th percentile of the volume distribution of particle size, that is to say that 50% of the volume consists of particles whose size is less than D50 and 50% larger than D50.
  • the aqueous foam generated has an air bubble size having a D50 equal to 250 ⁇ m.
  • the D50 of the bubbles is measured by backscattering.
  • the device used is the Turbiscan® Online supplied by the company Formulaction. Measurements by backscattering make it possible to estimate the D50 for the bubbles of an aqueous foam, by knowing the volume fraction of the bubbles and the refractive index of the foaming agent solution.
  • the foaming agent is an organic derivative of proteins of animal origin (for example, the foaming agent named Propump26, hydrolyzed keratin powder, sold by the company Propump) or vegetable.
  • the foaming agents can also be cationic (for example cetyltrimethylammonium CTAB), anionic, amphoteric (for example cocoamidopropyl betaine CAPB) or even nonionic surfactants, or their mixtures.
  • the contacting of the cement slurry with the aqueous foam to obtain a foamed cement slurry can be done by any means and for example using a static mixer.
  • the cement slurry is pumped at a constant volume flow rate depending on the composition of the target foamed cement slurry. Then the cement slurry is brought into contact with the aqueous foam already circulated in the process circuit. The foamed cement grout according to the invention is then generated. This foamed cement grout is shaped and left until it sets.
  • the process according to the invention does not require an autoclave step, or a curing step, or a heat treatment step, for example at 60-80 ° C in order to obtain a cement foam according to invention.
  • An object of the invention is also a foamed cement slurry, which can be obtained in step (ii) of the process according to the invention.
  • a subject of the present invention is also a mineral foam capable of being obtained by the process according to the invention.
  • the mineral foam according to the invention can be prefabricated or prepared directly on a site by installing a foaming system on site.
  • the mineral foam according to the invention has a density in the dry state of 30 to 80 kg / m 3 . It should be noted that the density of foamed cement grout (wet density) differs from the density of mineral foam (density of hardened material).
  • the mineral foam according to the invention has a thermal conductivity of from 0.030 to 0.150 W / (mK), preferably from 0.030 to 0.060 W / (mK) and more preferably from 0.030 to 0.055 W / (mK), the margin of error being ⁇ 0.4 mW / (mK).
  • the mineral foam according to the invention has very good fire resistance.
  • the invention also relates to a construction element comprising a mineral foam according to the invention.
  • the mineral foam according to the invention in the field of construction is also an object of the invention.
  • the mineral foam according to the invention can be used for pouring walls, floors, roofs during a construction site. It is also envisaged to produce prefabricated elements in a prefabrication plant from the foam according to the invention, such as blocks or panels.
  • the invention also relates to the use of the mineral foam according to the invention as an insulating material, in particular as a thermal or sound insulator.
  • the mineral foam according to the invention makes it possible in certain cases to replace glass wool, mineral wool or polystyrene insulation and polyurethane.
  • the mineral foam according to the invention therefore has very low thermal conductivity. Decrease the thermal conductivity of building materials is highly desirable since it makes it possible to obtain a saving in heating energy in residential or work buildings.
  • the mineral foam according to the invention makes it possible to obtain good insulation performance over low thicknesses and therefore to preserve the habitable surfaces and volumes.
  • Thermal conductivity also called lambda ( ⁇ )
  • ⁇ is a physical quantity characterizing the behavior of materials during heat transfer by conduction. Thermal conductivity represents the amount of heat transferred per unit area and per unit of time under a temperature gradient. In the international system of units, thermal conductivity is expressed in watts per kelvin meter (W / (mK)).
  • the mineral foam according to the invention can be chosen from foams having a thermal conductivity ranging from 0.030 to 0.150 W / (mK), preferably from 0.030 to 0.060 W / (mK) and more preferably from 0.030 to 0.055 W / (mK ), the margin of error being ⁇ 0.4 mW / (mK).
  • the mineral foam according to the invention can be used in filling or filling an empty or hollow space of a building, of a wall, of a partition, of a masonry block, for example a concrete block, of 'a brick, a floor or a ceiling.
  • Such materials or composite construction elements comprising the mineral foam according to the invention are also subjects of the invention per se.
  • the mineral foam according to the invention can be used as a facade covering, for example to insulate a building from the outside.
  • the mineral foam according to the invention can be coated with a finishing coating.
  • the subject of the invention is also a device comprising the mineral foam according to the invention.
  • the foam can be present in the device as an insulating material.
  • the device according to the invention is advantageously capable of resisting or reducing air and thermohydric transfers, that is to say that this element has a controlled permeability to transfers of air, water in the form of vapor or of water. liquid.
  • the device according to the invention preferably comprises at least one framework or one structural element.
  • This framework can be concrete (posts / beams), metal (upright or rail), wood, plastic or composite material or synthetic material.
  • the mineral foam according to the invention can also coat a structure of the lattice type, for example (plastic, metal).
  • the mineral foam according to the invention can also be used to fill the hollow parts of masonry blocks, for example hollow bricks or concrete blocks, the foam being able to be injected at any stage of manufacture of the masonry blocks.
  • the device according to the invention can be used to produce or manufacture a lining, an insulation system, or a partition, for example a separating partition, a distribution partition or a counter-partition.
  • the mineral foam according to the invention may be poured vertically between two walls, chosen for example from concrete walls, brick walls, plasterboard, wood plate, for example wood panels with thin oriented slats, or fiber cement panels. , the whole forming a device.
  • the particle size curves of the various powders are obtained from a Mastersizer 2000 type laser particle size analyzer (year 2008, MAL1020429 series) sold by the company Malvern.
  • the measurement is carried out in a suitable medium (for example in an aqueous medium for the non-reactive particles, or alcoholic for the reactive materials) in order to disperse the particles; particle size should be 1 ⁇ m to 2 mm.
  • a suitable medium for example in an aqueous medium for the non-reactive particles, or alcoholic for the reactive materials
  • the light source consists of a He-Ne red laser (632 nm) and a blue diode (466 nm).
  • the optical model is that of Fraunhofer, the computation matrix is of the polydisperse type.
  • a background noise measurement is first made with a pump speed of 2000 rpm, a stirrer speed of 800 rpm and a noise measurement over 10 s, in the absence of ultrasound. It is then verified that the light intensity of the laser is at least equal to 80%, and that a decreasing exponential curve is obtained for the background noise. If not, the lenses of the cell should be cleaned.
  • a first measurement is then carried out on the sample with the following parameters: pump speed of 2000 rev / min, stirrer speed of 800 rev / min, absence of ultrasound, obscuration limit between 10 and 20%.
  • the sample is introduced to have an obscuration slightly greater than 10%.
  • the measurement is carried out with a time between immersion and the measurement set at 10 s. The measurement time is 30 s (30,000 diffraction images analyzed). In the granulogram obtained, it must be taken into account that part of the population of the powder can be agglomerated.
  • a second measurement is then carried out (without emptying the tank) with ultrasound.
  • the pump speed is increased to 2500 rpm, the agitation to 1000 rpm, the ultrasound is emitted at 100% (30 watts). This speed is maintained for 3 minutes, then we return to the initial parameters: pump speed of 2000 rev / min, agitator speed of 800 rev / min, absence of ultrasound. After 10 s (to evacuate any air bubbles), a 30 s measurement is taken (30,000 images analyzed). This second measurement corresponds to a powder deagglomerated by ultrasonic dispersion.
  • the device is calibrated before each work session using a standard sample (Sifraco C10 silica) whose particle size curve is known. All the measurements presented in the description and the ranges announced correspond to the values obtained with ultrasound.
  • the specific surface of the different materials is measured as follows.
  • the wet samples are dried in an oven until a constant mass is obtained at a temperature of 50 to 150 ° C (the dried product is then ground to obtain a powder whose size maximum particle size is less than or equal to 80 ⁇ m).
  • the cements used are Portland cements from various Lafarge cement plants identified by the name of the place where they are located as specified in table (I). These cements are standard type cements. The letters “R” and “N” correspond to the definition of standard NF EN 197-1, version of April 2012.
  • the superplasticizer used is a mixture comprising a polycarboxylate polyoxide (PCP) from the company Chryso under the name Chrysolab EPB530-017 and not including no anti-foaming agent.
  • PCP polycarboxylate polyoxide
  • the dry extract of Chrysolab EPB530-017 is 48%, percentage by mass.
  • the calcium salt used is a mixture of calcium chloride and calcium nitrate from the company Chryso under the name ChrysoXel CBP.
  • the dry extract of Chrysoxel CBP is 52%, percentage by mass.
  • the silicate salt used is a sodium silicate from the company Chryso under the name ChrysoJet RS38.
  • the dry extract of ChrysoJet RS38 is 38%, percentage by mass.
  • Water is tap water.
  • each cement grout is referenced by a number from II to X and each aqueous foam bears a number of 1 or 2.
  • the cement foam (or mineral foam according to the invention) obtained is a combination of one of these cement grouts with one of these aqueous foams.
  • the chemical compositions of the various cement grouts used to carry out the invention are presented in Table I.
  • the grouts were produced with the Rayneri Turbotest 33/300 mixer by prior introduction of the liquid components (water, water reducing agent, salts. calcium and silicate salts). With stirring (1000 rpm), the solids (cement and all materials in powder form) are added gradually. The grout was then kneaded for two more minutes.
  • aqueous solution containing the foaming agent was introduced into a tank.
  • the composition of this aqueous solution of foaming agent (in particular the concentration and the nature of the foaming agent) is reported in Table II.
  • the foaming agent solution was pumped by the Seepex TM MD 006-24 positive displacement progressive cavity pump (commission no .: 278702).
  • This foaming agent solution was co-introduced through the frother bead bed with pressurized air (range 1 to 6 bar) using a T-junction.
  • the aqueous foam was released. was generated continuously at the rate indicated in Table II.
  • Table II formulation of aqueous foams and flow rate ⁇ /i> ⁇ /b> Aqueous foam number 1 2
  • the cement slurry obtained previously, was converted in the mixing tank with stirring (400 rpm) The slurry was pumped using a Seepex TM MD 006-24 positive displacement offset screw pump (commission number: 244920 ).
  • the pumped grout and the previous continuously generated aqueous foam were contacted in the static mixer.
  • the aqueous foam is generated by respecting the flow rates specified in Table II.
  • the cement slurry is pumped at a rate of approximately 0.285 L / min to obtain a foamed cement slurry with a density of approximately 110 kg / m 3 wet (example B, D, F, G, H, I, J , K, L, M, N).
  • the foamed cement grout is then generated.
  • the volume of cement grout used is at this density about 33 L / m 3 and the volume of aqueous foam about 967 L / m 3 .
  • the cement slurry is pumped at a rate of approximately 0.160L / min to obtain a foamed cement slurry with a density of approximately 85kg / m3 wet (example O).
  • the Foamed cement grout is then generated.
  • the volume of cement grout used is at this density about 19 L / m 3 and the volume of aqueous foam about 981 L / m 3 .
  • the foamed cement slurry was poured into polystyrene cubes of 10x10x10cm side and in cylindrical columns 2.50 m high and 20 cm in diameter. Three cubes were made for each foamed coulis. The cubes were removed from the mold for 1 day and then stored for 7 days at 100% relative humidity and 20 ° C. The cubes were then dried at 45 ° C until a constant mass was obtained. A column was created for certain foamed grouts. The columns were demolded between 3 and 7 days and then cut into 25 cm long sections. The sections were dried at 45 ° C. until a constant mass was obtained.
  • the stability of the foams was measured simply by visual inspection of the cubes generated before demoulding.
  • a foam has been described as “stable” if the cube considered has retained a height of 10cm after its setting.
  • a foam has been characterized as “unstable” if the considered cube has collapsed during its setting.
  • Each test was carried out on 3 cubes 10x10x10 cm. The results show a similar behavior between the 3 cubes. When applicable, the results expressed are the average of these 3 cubes.
  • a column was considered to be stable when the difference in density between the bottom section and the top section of the column does not exceed 5 kg / m 3 .
  • the thermal conductivity was measured using a thermal conductivity measuring device: CT-meter supplied by the company Alphis-ERE (5 ⁇ resistance, 50mm probe wire). The measurement was carried out on samples dried at 45 ° C. to constant mass. The sample was then cut into two equal pieces using a saw. The measurement probe was placed between the two flat faces of these two sample halves (sawn sides). The heat was transmitted from the source to the thermocouple through the material surrounding the probe. The temperature rise of the thermocouple was measured as a function of time and made it possible to calculate the thermal conductivity of the sample.
  • the wet density of the foamed cement grouts was measured by weighing the cubes at the time of pouring.
  • the dry density of the samples was measured on samples dried at 45 ° C. to constant mass, again by weighing the cubes.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Architecture (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)

Claims (14)

  1. Herstellungsverfahren eines mineralischen Schaums, umfassend die folgenden Schritte:
    (i) Zubereiten eines wässerigen Schaums und eines Zementgusses unabhängig voneinander, wobei der Zementguss Wasser E, einen Zement C, ein Wasser-Reduktionsmittel, ein in Wasser lösliches Kalziumsalz, ein in Wasser lösliches Silikatsalz enthält, wobei das Molverhältnis Kalzium / Silizium zwischen 0,7 und 1,7 inbegriffen ist und das Masseverhältnis E/C zwischen 0,25 und 0,40 inbegriffen ist und es sich von selbst versteht, dass die Konzentration an Kalziumionen zwischen 0,03 und 0,97 % inbegriffen ist, wobei der Prozentsatz als Masse im Verhältnis zur Zementmasse C ausgedrückt wird und die Konzentration an Silikationen zwischen 0,04 und 1,67 % inbegriffen ist, wobei der Prozentsatz der Masse im Verhältnis zur Zementmasse C ausgedrückt wird;
    (ii) Kontaktieren des erhaltenen Zementgusses mit dem wässerigen Schaum, um einen schaumigen Zementguss zu erhalten; und
    (iii) Formen des in Schritt (ii) erhaltenen schaumigen Zementgusses und Aushärten lassen.
  2. Verfahren gemäß Anspruch 1, bei dem das Molverhältnis Kalzium / Silizium zwischen 0,8 und 1,5 inbegriffen ist.
  3. Verfahren gemäß Anspruch 1, bei dem das Verhältnis E / C in der Masse ausgedrückt zwischen 0,28 und 0,35 inbegriffen ist.
  4. Verfahren gemäß irgendeinem der voranstehenden Ansprüche, bei dem der Zement C ein Zement vom Typ CEM I, CEM II, CEM III, CEM IV oder CEM V ist.
  5. Verfahren gemäß irgendeinem der voranstehenden Ansprüche, bei dem der Zement eine spezifische Oberfläche nach Blaine aufweist, die zwischen 3.000 und 10.000 cm2/g, bevorzugt zwischen 3.500 und 6.000 cm2/g inbegriffen ist.
  6. Verfahren gemäß irgendeinem der voranstehenden Ansprüche, bei dem der Zementguss ein Wasser-Reduktionsmittel vom Weichmachertyp oder Superweichmacher umfasst.
  7. Verfahren gemäß irgendeinem der voranstehenden Ansprüche, bei dem der mineralische Schaum einen mineralischen Zuschlag umfasst.
  8. Verfahren gemäß irgendeinem der voranstehenden Ansprüche, bei dem der mineralische Schaum im Wesentlichen keine Feinpartikel enthält.
  9. Verfahren gemäß irgendeinem der voranstehenden Ansprüche, bei dem das in Wasser lösliche Kalziumsalz aus Kalziumchlorid, Kalziumnitrat, Kalziumformat, Kalziumacetat, Kalziumchlorat, Kalziumbromid, Kalziumlaktat, Kalziumnitrit, Kalziumpropionat, Kalzium-Hydrogenkarbonat, Kalziumiodid und deren Mischungen ausgewählt wird.
  10. Verfahren gemäß irgendeinem der voranstehenden Ansprüche, bei dem das in Wasser lösliche Silikatsalz aus der Familie der Natriumsilikate, der Familie der Kaliumsilikate, Kieselsäure und deren Mischungen ausgewählt wird.
  11. Mineralischer Schaum, der geeignet ist, durch das Verfahren gemäß irgendeinem der Ansprüche 1 bis 10 erhalten zu werden, dadurch gekennzeichnet, dass es eine Dichte aufweist, die im trockenen Zustand von 30 bis 80 kg/m3 inbegriffen ist.
  12. Schaum gemäß Anspruch 11, dadurch gekennzeichnet, dass er eine thermische Leitfähigkeit aufweist, die zwischen 0,030 und 0,150 W/(m.K) inbegriffen ist.
  13. Bauelement, umfassend einen mineralischen Schaum gemäß irgendeinem der Ansprüche 11 bis 12.
  14. Verwendung eines mineralischen Schaums gemäß einem der Ansprüche 11 bis 12 als Dämmmaterial, insbesondere als Wärme- oder Schall-Dämmmaterial.
EP16813000.3A 2015-11-17 2016-11-17 Ultraleichter mineralischer schaum und herstellungsverfahren dafür Active EP3377458B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL16813000T PL3377458T3 (pl) 2015-11-17 2016-11-17 Ultralekka pianka mineralna i sposób jej wytwarzania

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1561057A FR3043675B1 (fr) 2015-11-17 2015-11-17 Mousse minerale ultra-legere et son procede de fabrication
PCT/FR2016/053000 WO2017085416A1 (fr) 2015-11-17 2016-11-17 Mousse minerale ultra-legere et son procede de fabrication

Publications (2)

Publication Number Publication Date
EP3377458A1 EP3377458A1 (de) 2018-09-26
EP3377458B1 true EP3377458B1 (de) 2021-09-29

Family

ID=55361662

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16813000.3A Active EP3377458B1 (de) 2015-11-17 2016-11-17 Ultraleichter mineralischer schaum und herstellungsverfahren dafür

Country Status (8)

Country Link
US (1) US10676402B1 (de)
EP (1) EP3377458B1 (de)
CN (1) CN108367988A (de)
CA (1) CA3004824C (de)
FR (1) FR3043675B1 (de)
MA (1) MA43272A (de)
PL (1) PL3377458T3 (de)
WO (1) WO2017085416A1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA3101690A1 (en) 2018-05-30 2019-12-05 Holcim Technology Ltd Ultra-light mineral foam having water repellent properties
FR3085374B1 (fr) 2018-08-28 2020-11-13 Holcim Technology Ltd Procede de preparation d'une mousse minerale legere, mousse minerale obtenue et utilisations
US20240018045A1 (en) 2020-12-07 2024-01-18 Holcim Technology Ltd Process for the production of an ultra-light mineral, and use of the resulting mineral foam as a refractory material
GB2637365A (en) * 2024-05-28 2025-07-23 G4 Master Ltd Foamed concrete compositions, methods of preparation and uses thereof
CN119241144B (zh) * 2024-09-10 2025-10-31 上海建工建材科技集团股份有限公司 一种高张力轻质混凝土制备方法及轻质混凝土

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11500477A (ja) * 1995-02-14 1999-01-12 アライド フォーム テック コーポレイション 安定かつ耐水性の水性発泡体組成物
RU2520105C2 (ru) * 2008-09-02 2014-06-20 Констракшн Рисёрч Энд Текнолоджи Гмбх Содержащая пластифицирующую добавку композиция добавки-ускорителя твердения
FR2955104B1 (fr) * 2010-01-13 2014-08-08 Kerneos Materiau pour isolation thermique et son procede de fabrication
FR2958931B1 (fr) * 2010-04-20 2012-05-18 Lafarge Sa Liant hydraulique rapide pour pieces et ouvrages en beton
TW201228994A (en) * 2011-01-14 2012-07-16 Kerneos Thermal insulation material and method for making the same
FR2989083B1 (fr) * 2012-04-06 2014-04-25 Lafarge Sa Mousse minerale isolante
CN102838333A (zh) * 2012-09-17 2012-12-26 管振忠 一种外墙用无机泡沫水泥保温材料
CN102838375B (zh) * 2012-09-17 2014-10-29 贾立群 一种无机泡沫保温材料及其制备方法
FR3021969B1 (fr) * 2014-06-06 2016-10-28 Lafarge Sa Mousse minerale ultra-legere et son procede de fabrication
RU2696928C2 (ru) * 2014-12-18 2019-08-07 Басф Се Строительная химическая композиция раствора для укладки плитки
EP3176139A1 (de) * 2015-12-04 2017-06-07 Lafarge Ultraleichter mineralschaum
EP3176138B1 (de) * 2015-12-04 2020-04-08 Holcim Technology Ltd. Verfahren zur herstellung eines ultraleichten mineralschaums

Also Published As

Publication number Publication date
MA43272A (fr) 2021-05-26
US10676402B1 (en) 2020-06-09
CN108367988A (zh) 2018-08-03
CA3004824A1 (fr) 2017-05-26
CA3004824C (fr) 2023-09-26
FR3043675A1 (fr) 2017-05-19
PL3377458T3 (pl) 2021-12-20
FR3043675B1 (fr) 2022-11-11
EP3377458A1 (de) 2018-09-26
WO2017085416A1 (fr) 2017-05-26

Similar Documents

Publication Publication Date Title
EP3377458B1 (de) Ultraleichter mineralischer schaum und herstellungsverfahren dafür
RU2723318C2 (ru) Ультралёгкий минеральный пеноматериал
EP3237353B1 (de) Verfahren zur kontinuierlichen herstellung eines mineralschaums mit niedriger dichte
US8801851B2 (en) Foamed concrete
FR2989083A1 (fr) Mousse minerale isolante
CN109790077B (zh) 用于制备具有内部产生的泡沫的轻质石膏组合物的方法及由其制备的产品
EP3383816B1 (de) Ultraleichter mineralschaum
WO2011101595A1 (fr) Plaque legere de ciment
FR2955103A1 (fr) Adjuvant moussant pour la preparation de mousses minerales d'enduits, de mortiers et betons, mousses ainsi obtenues et produits durcis issu de ces mousses
WO2017178729A1 (fr) Composition de mortier fortement allege et isolant thermique
EP3176137A1 (de) Ultraleichter mineralschaum
EP3152181B1 (de) Verfahren zur herstellung eines ultraleichten mineralschaums
EP3483131B1 (de) Verfahren zur herstellung eines mineralschaumstoffs aus einem schäumenden schlamm mit hoher streckgrenze
FR3000060A1 (fr) Composition de beton ou mortier allege comprenant une mousse aqueuse
EP3126588B1 (de) Verfahren zur herstellung eines isolierenden verbundbausteins
WO2020043751A1 (fr) Procede de preparation d'une mousse minerale legere, mousse minerale obtenue et utilisations
EP3325424A1 (de) Verfahren zur herstellung von glyzerinhaltigem leichtbeton oder mörtel
FR3161429A1 (fr) Procédé de préparation d’une mousse minérale solide
FR3058139A1 (fr) Procede de fabrication d'une mousse minerale et utilisation de cette mousse en tant que materiau isolant

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20180613

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAX Request for extension of the european patent (deleted)
RAV Requested validation state of the european patent: fee paid

Extension state: MA

Effective date: 20180613

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20200416

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: HOLCIM TECHNOLOGY LTD

RIC1 Information provided on ipc code assigned before grant

Ipc: C04B 111/28 20060101ALN20200914BHEP

Ipc: C04B 111/52 20060101ALN20200914BHEP

Ipc: C04B 28/04 20060101ALI20200914BHEP

Ipc: C04B 28/02 20060101AFI20200914BHEP

Ipc: C04B 38/10 20060101ALI20200914BHEP

Ipc: C04B 22/00 20060101ALI20200914BHEP

RIC1 Information provided on ipc code assigned before grant

Ipc: C04B 111/28 20060101ALN20200918BHEP

Ipc: C04B 111/52 20060101ALN20200918BHEP

Ipc: C04B 28/04 20060101ALI20200918BHEP

Ipc: C04B 38/10 20060101ALI20200918BHEP

Ipc: C04B 28/02 20060101AFI20200918BHEP

Ipc: C04B 22/00 20060101ALI20200918BHEP

RIC1 Information provided on ipc code assigned before grant

Ipc: C04B 111/28 20060101ALN20200930BHEP

Ipc: C04B 22/00 20060101ALI20200930BHEP

Ipc: C04B 28/02 20060101AFI20200930BHEP

Ipc: C04B 111/52 20060101ALN20200930BHEP

Ipc: C04B 38/10 20060101ALI20200930BHEP

Ipc: C04B 28/04 20060101ALI20200930BHEP

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20201125

GRAJ Information related to disapproval of communication of intention to grant by the applicant or resumption of examination proceedings by the epo deleted

Free format text: ORIGINAL CODE: EPIDOSDIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTC Intention to grant announced (deleted)
RIC1 Information provided on ipc code assigned before grant

Ipc: C04B 111/52 20060101ALN20210331BHEP

Ipc: C04B 111/28 20060101ALN20210331BHEP

Ipc: C04B 22/00 20060101ALI20210331BHEP

Ipc: C04B 38/10 20060101ALI20210331BHEP

Ipc: C04B 28/04 20060101ALI20210331BHEP

Ipc: C04B 28/02 20060101AFI20210331BHEP

INTG Intention to grant announced

Effective date: 20210429

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: AT

Ref legal event code: REF

Ref document number: 1434070

Country of ref document: AT

Kind code of ref document: T

Effective date: 20211015

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602016064396

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: FRENCH

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211229

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210929

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210929

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210929

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211229

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210929

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210929

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20210929

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210929

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211230

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220129

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210929

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210929

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220131

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210929

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210929

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210929

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210929

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210929

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210929

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602016064396

Country of ref document: DE

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20211117

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210929

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20211130

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20211130

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20211229

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20211130

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20211130

26N No opposition filed

Effective date: 20220630

REG Reference to a national code

Ref country code: AT

Ref legal event code: UEP

Ref document number: 1434070

Country of ref document: AT

Kind code of ref document: T

Effective date: 20210929

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20211117

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20211229

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210929

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210929

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20161117

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230503

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210929

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210929

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210929

VS25 Lapsed in a validation state [announced via postgrant information from nat. office to epo]

Ref country code: MA

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210929

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210929

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20241108

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: PL

Payment date: 20241022

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20241011

Year of fee payment: 9

Ref country code: AT

Payment date: 20241023

Year of fee payment: 9